Home / 109,317.40-163,605.44-67,223.92

Finding the Fourth Proportional to 109,317.40, 163,605.44 and 67,223.92

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Solution

The fourth proportional to 109,317.40, 163,605.44 and 67,223.92 is: 100,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,317.40 : 163,605.44 = 67,223.92 : x
  2. Step 2: Convert to fraction form
    109,317.40/163,605.44 = 67,223.92/x
  3. Step 3: Cross multiply
    109,317.40x = 163,605.44 × 67,223.92
  4. Step 4: Simplify right side
    109,317.40x = 10,998,199,010.12
  5. Step 5: Solve for x
    x = 10,998,199,010.12/109,317.40
  6. Step 6: Final answer
    x = 100,607.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.